$(document).ready(function(){
	$('#fb_login').click(function(){
		var screenHeight = screen.height;
		var screenWidth = screen.width;
		var top = (screen.height-436)/2; var left = (screen.width-626)/2;
	
		var url = $(this).attr('href');
		window.open(url, 'sharer', 'toolbar=0,status=0,width=626,height=436,top='+top+',left='+left);
		return false;
	});
});
